*{
    margin: 0;
    padding: 0;
  }
  html{
    perspective: 800px;
  }
  body {
    
    background-image: url(https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fuploads.xuexila.com%2Fallimg%2F1609%2F703-160929164936-50.jpg&refer=http%3A%2F%2Fuploads.xuexila.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1659752657&t=123dcc2006656a6f989607b4b61f4761);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-attachment: fixed;
  }
  .App{
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding-top: 100px;
  }